Observe on Lunar Day (after New Moon): 8 or 21
Lunar Day Seen: 8
Date/Time: 12/13/2021 19:15 Local Time
Location: 1425 Snowberry Lane, Broomfield, CO
Seeing: VG
Transparency: 6
Instrument Used: 8" f/6 Newtonian Telescope
Magnification: 203x
Estimated Lunar Epoch: Eratosthenian - The namesake crater
Actual Lumar Epoch: Eratosthenian
Reasoning/Description: Sharp walls after basins filled. Post Imbrian. No rays. Has complex central peak.
Sketch (click for larger image)
